Middle French affluent, from Latin affluentem, accusative singular of affluēns, present active participle of affluō (“flow to or towards; overflow with”), from ad (“to, towards”) + fluō (“flow”) (cognate via latter to fluid, flow). Sense of “wealthy” (plentiful flow of goods) c. 1600, which also led to nominalization affluence.
affluent (plural affluents)
- Somebody who is wealthy.
- A stream or river flowing into a larger river or into a lake; a tributary stream; a tributary.
affluent (comparative more affluent, superlative most affluent)
- Abundant; copious; plenteous.
- (by extension) Abounding in goods or riches; having a moderate level of material wealth.
- (dated) Tributary.
- (obsolete) Flowing to; flowing abundantly.